Box



J. H. BURR July 29, 1941.

BOX

Filed March 1, 1940 2 Sheets-Sheet 1 {John H. burr Patented July 29, 1941 UNITED STATES PATENT OFFICE 1 BOX John H. Burr, St. Paul, Minn., assignor to Waldorf Paper Products Company, St. Paul, Minn a corporation of Minnesota.

Application'March 1,1940, Serial No. 321,645

11 Claims.

My invention relates to boxes and has for an object to provide an extremely rigid and substantial construction capable of carrying bottles or similar heavy articles.

Another object of the invention resides in providing a cover for the box adapted to be frequently opened and re-closed.

A still further object of the invention resides in providing a box capable of sustaining appreciable weight applied to the cover thereof.

An object of the invention resides in constructing the cover with two flaps adapted to meet at the center of the box when in closed position and in constructing the box so that the closure formed by the flaps is extremely rigid throughout the meeting edges and along the center of the box.

A still further object of the invention resides in securing cleats to the meeting edges of the box and in supporting-the cleats through the end walls of the box.

Another object of the invention resides in providing means for connecting one end of the box to the other through the cleats on the cover flaps.

Another object of the invention resides in providing a construction for preventing relative longitudinal movement between the cleats or cover flaps.

Another object of the invention resides in providing a box capable of being lifted by one end.

A still further object of the invention resides in providing in the cleats vertical 'slots in the meeting edges thereof and in further providing a wire engaging member on each end wall adapted to engage within the notches of the cleats to restrain relative movement of the parts.

Another object of the invention resides in constructing the engaging members with two parts, each adapted to engage one of the cleats on opposite sides thereof to frictionally hold the cleats in place and maintain the cover flaps in closed position.

Another object of the invention resides in constructing the engaging member in a manner to strengthen the cleat at the end thereof.

A feature of the invention resides in oil-setting the portions of the engaging member engaging the cleats to bring the notches of the cleats inwardly of the ends thereof.

Other objects of the invention reside in the novel combination and arrangement of partsand in the details of construction hereinafter illustrated and/or described.

In the drawings:

Fig. 1 is a perspective view of a box illustrating similar to that used in scores I0 and H and a an embodiment of my invention and showing the cover flaps partly open.

Fig. 2 is an end elevational. viewof the structure shown in Fig. 1 with the cover flaps closed.

Fig. 3 is a fragmentary elevational sectional view taken on line 3-3 larger scale.

Fig. 4 is a cross sectional view takenon line |-4 of Fig. 3 and drawn to the same scale as i Fig. 5 is a developed view of the blank from which the bottom, side walls and cover flaps of the box are constructed. I

Fig. 6 is a developed view of the blank from which the end walls of the box are constructed and drawn to a slightly greater scale than Fig.5.

Fig. 7 is a perspective view of one of the cleats of the invention detached from the box.

My invention, which is best shown in Fig. 1, is constructed from fibreboard or any other suitable material and is formed from a body blank A and two end blanks B. These blanks are shown in detail in Figs. 5 and 6 in developed form and will now be described.

The blank A consists of a single sheet of fibreboard of a width sufliciently greater than the length of the box to form end flaps on the various walls of the box and of a length sufficient to form a bottom, side walls and cover flaps for the box. This blank is formed with two longitudinal number of transverse scores l2, I3, l4 and I5 which divide the blank into a bottom l6, side walls I! and I8 and cover flaps l9 and 2|. In addition, the said scores form at the ends of the side walls I1 and I8, the bottom l6 and the cover flaps I9 and 2|, end flanges 22. The various flanges 22 are separated by means of notches 23 situated at the ends of the scores I2, l3, l4 and I5, which permit of folding the walls of the blank into proper position. The flaps l9 and 2| are of such width' that the free edges 24 thereof meet at the center of the box when the body blank is folded up and formed into the box.

The end blank B is constructed of material the' construction of the blank A which is of a width equal to the width .of the box and of a height somewhat greater than the height of the box. This blank has formed in it a transverse score 25 which divides the blank into an end wall 26 and an end wall flap 21. The end wall 26 has a hand hole 28 in it and the flap 21 has a cut away portion 29 adapted to register the said flop is folded with the hand hole 28 when into overlying position, as shown in Fig. 3.

of Fig. 2 and drawn to a.

4 18' and 2| are two cleats'31 and 38.

In the erection of the box, the flaps 21 of the blanks B are folded over and secured to the end walls 26, as will behereinafter more fully described. The blanks B are then assembledjwithin the blank Awith the side and bottom edges of 5 these blanks adjacent the various flanges 22 of the blank A. Theov erlying said parts of the various blanks are then secured together through staples or wire stitches32. In this manner the end walls as are rigidly attached to the bottom I6 and to the side walls l1 and |8 of the box. The-blank B has formed in it an opening 33 which is disposed medially of the lateral edges of the box andjextends across the transverse score 26. This opening is directly above the hand hole 28. When the'flap 21 is'folded backtupon' the end wall 26 the opening 33 forms a recess along the foldededge 34 of the end wall 26,

- which recess is indicated by the reference numeral 36. The upperportion of the opening 33 is formed with two notches 36 which are disposed upon the interior of the box: and are formed in the flap 21. These notches serve a purpose to be presently described in detail.

Attached to the under surfaces of the flaps These cleats are identical in'con'struction and only the cleat 31 will be described. The cleat 31 is shown in detail. in Fig. 7. This cleat isconstructed from wood, being rectangular in form and of a length equal to the length of the flap |8 between the scores l6 and II of the blank A. In the construction of the box the flanges 22 which issue from the edges of the flap i8 are folded inwardly and caused to overlie the under surface of the said flap. The cleat 31 is" constructed with two rabbets 39 at the ends of the same and situated at the upper surfaces ,thereoi, which receive the flanges 22 of the flap l8 and hold the same in place. The flap 2| and cleat 38 are assembled in the same manner. The cleats 31 and 36 are attached to the flaps |6 and 2| by means of wire stitches 4|, or in any other suitable manner, as by gluing or the like. In the surface 42 of the cleat 31, which faces the other cleat 38 and near the ends of the cleats are formed two vertically extending grooves 43. These grooves are disposed inwardly of the ends of the cleat and extend only partly into the cleat. These grooves are similarly formed on the two cleats and register with one another when the closure flaps l8 and 2| are in overlying position.

Operating in conjunction with the grooves 43 of cleats 31 and 38 are two engaging members 44 and 46 which are attached to the end walls 34' of the end wall structure. The basemembers 6| and 62 are formed with v oil-set portions which extend through the notches 36 in the blank B and causethe base members 6|]ahd the tongue 46 tobecomeofi-set from the remainder of the engaging member. This causes the base members 6| and 62 to rest upon edge62 of the flange 21, formed at the uppermost portion of the opening 33. At the same time the tongue 46 projects inwardly of the plane of the end wall 26. The grooves 43 in the cleats 31 and 36 are of such dimensions as to receive the uprights 41 and 48 of the tongue 46 when the closure flaps l8 and 2| are brought into closing position. The depth of these grooves is such that the. uprights 63 and 64 engage the cleats upon the opposite surfaces thereof. In this manner each cleat is separately held between the tongue 46 and the opposite upright 63 or 64. The parts are designed so that sufficient friction exists between the tongues and uprights and the cleats to hold the closure flaps in closing position.

In the assembly oi!v the engaging member 44 in the end wall structure, the slug .63 formed by making the hand hole 28 is utilized. This slug is disposed between the flap 21 and the end wall 26 and is of approximately the same thickness or alittle less than the diameter of the wire from which the engaging member 44 is constructed. This slug is situated between the legs 61 and 68 and is held in place by one or more staples or stitches 64 which passes jointly through the end wall 26, flange 21, and said slug. Other staples 66 straddle the legs 61 and 68 of engaging member 44, and hold the engaging member in position. By means of the notches 36 the ofl-set portions 6| are held from lateral movement and by means of the base members 6| and 62 resting upon the edge 62 and the wings 66 and 66 engaged within the bight formed by the score 26, the engaging member is held from up and down movement.

: brought into closing position and the upper ends 26 of the box. Inasmuch as both of these en their upper ends with wings 66 and 66 havingdepending legs 61 and 68 at the outer ends thereof. The entire attaching member 44 is adapted to be disposed between the flap 21 and the end wall 26. When so arranged, the uprights 63 and 64, the wings 66 and 66, and the legs 61 and 68 lie between the said flap and end wall with the wings 66 and, at the bight formed by the score 26 in the end wall blank B. When of the tongues 46 of engaging members 44 and 46 are brought into the grooves 43, formed in cleats 31 and 38. Due to the rounding of the ,tongues formed by bending the wire to provide the uprights 41 and 48 the tongues are easily in- .serted into the grooves 43 and the cover flaps brought into closing position. .When the cover flaps are in closing position the cleats are held from relative endwise movement and are clamped in proper position relative to one another. Due

to the construction of the engaging members the closure ilaps may be independently opened and closed and are independently frictionally held in closing position. It will be noted that the end walls are connected one to another through the engaging members engaging the notches of the cleats in the closure flaps. This permits of handling the box by inserting the hand'through one of the end walls and carrying the box by the portion thereof situated above the hand hole.

g The advantages of my invention are manifest. An extremely simple and practical construction is provided whereby a highly serviceable box is produced. By means of the particular form of engaging member employed the cleats of the ipito theed e cover flaps are independently clamped in position so that either cover flap may be opened without disturbing the other.

parts independently of the fasteners used in conjunction therewith.

Changes in the specific as herein disclosed, may

adapted to engage said cleats upon the opposite sides thereof whereby said cleats are independently engaged on opposite'sides'to hold the cover flaps to which they are attached in closingposh tion.

enter said grooves.

A box open at the top comprising 5. cnd walls anda bottom ing oif-set in a direction of the box.

' lying said walls upon lying said walls upon the inner surfaces of the same, said last named walls and flaps having recesses formed therein for the reception of the ends of the cleats, and engaging members disposed between said last named walls and flaps, said engaging members being constructed with uprights disposed at the edges of said recesses and adapted to engage said cleats and tions situated between said walls and flaps, said engaging members being constructed with of!- sets at the ends of said uprights for causing said uprights to extend toward the interior of the box. and notches formed in saidoverlying flaps for the reception of said off-sets, said notches assisting in holding said engaging members in position between said walls and flaps, said uprights engaging the cleats and keeping the same from spreading. a

8. A box open at the topcomprising side and end walls and a bottom connected therewith, a cover for the box comprising flaps hinged to two opposite walls of the box and extending substan-' tially in a common plane when in closed position to effect a closure for the box, cleats secured to said cover flaps upon the undersides thereof and situated at the meeting edges of the cover flaps, the other walls of the box having flaps turned inwardly from the upper edges thereof and overthe inner surfaces of the same, said last named walls and flaps having recesses formed therein for the reception of the ends of the cleats, said cleats having grooves therein at the locality of said recesses, engaging members disposed between said last named walls and flaps, said engaging members being, constructed with uprights disposed at the edges of said recesses and other portions situated between said walls and flaps, said engaging members being constructed with off-sets at the ends of said uprights for causing said uprights to extend toward the interior of the box, and notches formed in said overlying flaps for the reception of said off-sets, said notches assisting in holding said engaging members in position between said walls and flaps, said uprights engaging the cleats and keeping the same from spreading, tongues formed on said engaging members and adapted to enter the grooves in said cleats. p

9. A box open at the top comprising side and end walls and a bottom connected therewith, a cover for the box comprising flaps hinged to two opposite walls of the box and extending substantially in a common plane when in closed position to effect a closure for the box, flanges formed along the end edges of said closure members and turned inwardly upon the inner surfaces of said cover flaps, cleats secured to the inner surfaces of said cover flaps at the meeting edges thereof,

other portion of said flanges, said other walls being constructed with recesses for the reception of the ends of the cleats, grooves formed in said cleats upon the facing surfaces thereof, and tongues atto eflect a closure for the box, cleats secured to and entering said .said cover flaps upon the undersides thereof and situated at the meeting edges of the cover flaps, the other walls of the box having flaps turned inwardly fromthe upper edges thereof and overlying said walls upon the inner surfaces of the same, said last named walls and flaps having recesses formed therein for the reception of the ends of the cleats, said cleats having grooves therein at the locality of said recesses, engaging members disposed between said last named walls and flaps, tongues formed on said engaging members and extending into. said recesses adapted to enter said grooves, base members formed on said tongues and adapted to rest upon the edges of said wall flaps formed by said recesses, said engaging members including other parts disposed between said flaps and walls and engaging the bights formed between said flaps and walls.

11. A box open at the top comprising side and end walls. and a bottom connected therewith, a cover for the box comprising flaps hinged to two opposite walls of the box and extending substantially in a common plane when in closed position to effect a closure for the box, cleats secured to said cover flaps upon the undersides thereof and situated at the meeting edges of the cover flaps, the other walls of the box having flaps turned inwardly from and overlying said walls upon the inner surfaces of the same, said last named walls and flaps having recesses formed therein for the reception of the ends of the cleats, said cleats having grooves thereinat the locality of said recesses, engaging members disposed between said last named walls and flaps, tongues formed on said engaging members and extending into said recesses for engagement with said grooves, base members formed on said tongues and adapted to rest upon the edges of said wall flaps formed by said recesses, said engaging members including other parts dis-, posed between said flaps and walls and engaging the bights formed between said flaps and walls,

said cleats having rabbets therein for the recepf said flaps being formed with notches adjacent the bases of said engaging members, and off-sets at the localitv of the ends of said bases extending into said notches.

JOHN H. BURR.

the upper edges thereof 

